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1972 Honda CB500K Electrical Repair Parts

For a 1972 Honda CB500K electrical repair, first decide whether you need a wiring assembly, an ignition component or charging equipment. A main loom does not include all the connected parts. Matching the application and supplied contents helps you build a complete, accurate order.

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Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
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Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

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Honda CB750 CB650 CB550 CB500 battery box rubber 83618-323-000

Honda CB Battery Box Rubber ~ Replaces 83618-323-000

$4.95 USD
99-4986
Upgrade or restore your vintage Honda motorcycle with this Battery Box Rubber — designed to replace OEM #83618‑323‑000 and cushion your battery from vibration...
Honda CB550F CB550K CB500K positive (+) battery cable 32401-323-000

1971-78 Honda CB550F / CB550K / CB500K Positive (+) Battery Cable ~ Replaces 32401-323-000

$27.95 USD
73-0105
Replace your CB500 or CB550 positive battery cable with this Positive (+) Battery Cable with rubber end covers, replacing OEM #32401-323-000.Key Features• Positive (+)...
Honda CB750 CB650 CB550 CB500 CB450 gb cafe headlight bracket set.

Honda CB GB Cafe Headlight Bracket Set.

$44.52 USD
09-0016
Go for the distinct GB Café aesthetic with this GB Café Headlight Bracket Set in polished aluminum. Sized for 35mm fork tubes with 11mm...
Honda CB1000 CB900 headlight adjusting screw and spring set 33103-346-670

Honda CB Headlight Adjusting Screw & Spring Set ~ Replaces 33103-346-670

$7.50 USD
29-7011
Replace your headlight adjuster with this Headlight Adjusting Screw & Spring Set. Each set includes one screw and one spring. Replaces OEM #33103-346-670 (screw)...
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Honda CB550F CB550K CB500K alternator cover gasket 11691-323-306

1971-78 Honda CB550F / CB550K / CB500K Alternator Cover Gasket ~ Replaces 11691-323-306

$9.86 USD
18-6999
Replace your CB500K or CB550 alternator cover gasket with this Alternator Cover Gasket, replacing OEM #11691-323-306.Key Features• Alternator cover gasket• Replaces OEM #11691-323-306• Honda...
Honda CB750 CB500 CB450 CB400 turn signal lamp gasket 33443-268-671

Honda CB Turn Signal Lamp Gasket ~ Replaces 33443-268-671

$4.61 USD
11-2085
Service your early CB750 or classic twin turn signal with this Turn Signal Lamp Gasket, replacing OEM #33443-268-671. Pairs with our signal lens #11-2110...
Honda CB750 CB550 CB500 CB350 front turn signal stay short type

Honda CB750 / CB550 / CB500 / CB350 Front Turn Signal Stay ~ Short Type

$13.95 USD
73-1105
Mount a front turn signal with this Front Signal Lamp Stay with nut and washer, Short Type, Chrome.Body length 26mm, thread 21mm, total length...
Dynatek 3 ohm ignition coil set 2 Honda CB

Dynatek Performance 3 Ohm Ignition Coil Set/2

$289.00 USD
07-9980
Match your Dyna-style electronic ignition requirement with this Dynatek Performance Dual-Output 3 Ohm Ignition Coil Set of 2. Same Dynatek quality as the 5...
Honda CB550F CB550K CB500K negative (-) battery cable 32601-323-000

1971-78 Honda CB550F / CB550K / CB500K Negative (-) Battery Cable ~ Replaces 32601-323-000

$21.95 USD
73-0106
Replace your CB500 or CB550 negative battery cable with this Negative (-) Battery Cable (ground cable), replacing OEM #32601-323-000.Key Features• Negative (-) battery cable...
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Honda CB750 CB550 CB500 CB450 stock type headlight assembly 33100-341-701

Honda CB750 / CB550 / CB500 / CB450 Stock Type Headlight Assembly ~ Replaces 33100-341-701

$199.95 USD
08-0461
Restore the classic look of your Honda with this Stock Style Headlight Assembly. Features 7" Halogen Headlight Unit, Headlight Rim & Retainer, Plastic Headlight...
Honda CB750 CB650 CB550 CB500 CB450 gb cafe headlight bracket set 34mm

Honda CB GB Cafe Headlight Bracket Set ~ 34mm

$44.52 USD
09-0017
Polished aluminum headlight bracket set designed for a clean café-style front end. Built to mount securely to 34mm fork tubes, providing a stable and...
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Honda CB750 CB650 CB550 tommaselli type headlight bracket set 35mm

Honda CB Tommaselli Type Headlight Bracket Set ~ 35mm

$39.95 USD
09-0012
Go for a classic European look with these Tommaselli-Type Headlight Brackets, sized for 35mm fork tubes and supplied with rubber mount inserts. A sharp...
Honda CB750 CB550 CB450 CB350 CB360 tail light bracket 84701-341-670

Honda CB Tail Light Bracket ~ Replaces 84701-341-670

$124.95 USD
02-1233
Restore a proper tail end on your classic Honda with this Chrome Tail Light Bracket, replacing OEM #84701-341-670 / #84701-371-980. Fits a wide range...
Honda CB550 CB500 CB400F CB350F ignition coil set with plug caps

Ignition Coil Set with Plug Caps ~ Aftermarket Honda CB550 CB500 CB400F CB350F

$159.95 USD
24-2084
This aftermarket ignition coil set is built for the listed vintage Honda CB four-cylinder models. It replaces tired, cracked, weak, or failing original-style ignition...
Universal motorcycle spark plug cap VB05F

Universal Motorcycle Spark Plug Cap ~ VB05F

$9.50 USD
23-3124
Universal Motorcycle Spark Plug Cap ~ VB05F is an aftermarket part for the Honda CB applications listed in this product information. Before ordering, confirm...
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New
Universal motorcycle horn similar to stock style 12 volt

Universal Motorcycle Horn ~ Similar to Stock Style ~ 12 Volt

$34.95 USD
99-4994
Upgrade or restore your motorcycle’s horn system with this 12 Volt Chrome Horn — designed to deliver a clear, loud 103 dB signal at 3 amps. While...
Honda CB500K wire harness 32100-323-040

1972-73 Honda CB500K Wire Harness ~ Replaces 32100-323-040

$89.95 USD
73-0931
Replace your CB500K main wire harness with this Main Wire Harness Loom, OEM #32100-323-040.Note: this fits the model years and types listed; other years...
Honda CB750 CB550 CB500 CB360 rear turn signal stay 33441-369-000

Honda CB Rear Turn Signal Stay ~ Replaces 33441-369-000

$18.95 USD
11-2318
Fit an extended-length rear signal stay with this Rear Signal Lamp Stay in chrome, 125mm long, replacing OEM #33441-369-000. This is longer than the...
Honda CB750 SOHC CB500 CB550 dynatek dyna 2000 ultimate kit

Honda CB750 SOHC / CB500 / CB550 Dynatek Dyna 2000 Ultimate Kit

$1,199.00 USD
07-9992
Take the top-tier Dyna 2000 upgrade path on your SOHC CB750 or CB500/CB550 with this Dyna 2000 Digital Performance CDI Ignition Ultimate Kit. Includes...
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Honda CB500K CB550 CB750 SOHC electronic ignition kit with trigger plate, wiring harness and aluminum rotor

Electronic Ignition Kit ~ Honda CB500K / CB550 / CB750 SOHC

$229.00 USD
08-0319
Replace mechanical points and condensers with this aftermarket electronic ignition for the listed Honda SOHC four-cylinder models. Keep the original mechanical spark advancer and...
Honda CB500K sub wire harness 32105-323-030

1972-73 Honda CB500K Sub Wire Harness ~ Replaces Honda OEM 32105-323-030

$34.95 USD
24-6029
Replace brittle, cracked, corroded, or modified sub wiring on your Honda CB500K with this aftermarket sub wire harness made to replace Honda OEM 32105-323-030....
Honda CB750 SOHC CB500 CB550 dynatek dyna 2000 ignition system

Honda CB750 SOHC / CB500 / CB550 Dynatek Dyna 2000 Ignition System

$749.00 USD
07-9994
Get just the ignition module for your SOHC CB750 or CB500/CB550 with this Dyna 2000 Digital Performance CDI Ignition. The base unit for riders...
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1972 Honda CB500K · Electrical Buying guide

Build the repair around the affected electrical assembly

The 1972-specific wiring choice references the 1972–73 main loom. Ignition coil sets and charging units are separate purchases. Compare the bike’s existing equipment with the listing before combining original-style parts and modified electrical components.

Parts to consider

1972-73 Honda CB500K Wire Harness ~ Replaces 32100-323-040 1972–73 CB500K main loomReplaces Honda 32100-323-040. One main harness is supplied; switches, ignition equipment, lamps and separate sub-harnesses are additional components.View part Ignition Coil Set with Plug Caps ~ Aftermarket Honda CB550 CB500 CB400F CB350F Stock-style aftermarket coil setIncludes two coils, two straight caps, two angled caps and mounting bolts and nuts. Intended for the listed stock-style ignition layout; spark plugs are not supplied.View part Honda CB Rectifier/Regulator Combined charging regulator and rectifierOne unit takes over both charging functions. Stock-type plugs and instructions are provided, while the mounting location may require adaptation.View part

Related parts: Separate CB500K sub-harness · Rear stop-light switch

Count the connected components as well as the loom

The main-harness listing provides the loom rather than a complete electrical system. If parts are missing from a restoration, check the separate switches, lamps, charging equipment and branch harnesses before ordering. A new main loom cannot supply a missing component at the other end of a connector.

Keep original-style and modified requirements visible

The replacement coil set is described for a stock-style ignition arrangement, and the combined regulator has its own mounting dimensions. A different ignition or battery can add compatibility requirements. Read the relevant equipment instructions and identify the fitted components before deciding that two separately listed parts belong together.

Electrical FAQs

Which main-loom reference applies to this 1972 CB500K?

The current main-harness listing specifies Honda 32100-323-040 for the 1972–73 CB500K. Verify that reference and the installed connector arrangement. The similarly named 1971 harness has a different listing and should not be chosen by model name alone.

When should I compare the separate 32105-323-030 sub-harness?

Compare it when the wiring section being replaced matches that separate sub-harness, rather than the main loom. Its listing names the 1972 CB500K1. Check connectors, terminal ends, colours and routing, particularly if the bike has mixed-year electrical parts.

Do stock-type regulator plugs also guarantee an unchanged mounting fit?

The regular charging unit includes stock-type plugs, but may require custom mounting. Its body measures 68 x 94 x 26 mm, with 80 mm hole spacing. Compare the available mounting area as well as the existing connector arrangement.

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Send your model and year, plus photos of your existing part and any changes to the original setup.

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